1951000 has 32 divisors (see below), whose sum is σ = 4567680. Its totient is φ = 780000.

The previous prime is 1950989. The next prime is 1951003. The reversal of 1951000 is 1591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1951003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25 + ... + 1975.

It is an arithmetic number, because the mean of its divisors is an integer number (142740).

2^1951000 is an apocalyptic number.

1951000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1951000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2283840).

1951000 is an abundant number, since it is smaller than the sum of its proper divisors (2616680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1951000 is a wasteful number, since it uses less digits than its factorization.

1951000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1951000 is about 1396.7820159209. The cubic root of 1951000 is about 124.9546502158.

Adding to 1951000 its reverse (1591), we get a palindrome (1952591).

The spelling of 1951000 in words is "one million, nine hundred fifty-one thousand".